• Up to what room size is the WDH-H3 air purifier suitable?

  The maximum room size depends on many factors:

  For example, the layout of your room and the associated air circulation, the amount of impure air and your personal cleanliness goal. Furthermore, the type of air purification you use the unit for (the unit is particularly powerful with pollen, fine dust and dirt particles in the room air, and the unit takes a little longer with odours and cigarette smoke).

  
  

  Note: When filtering dust and particles, one filter cycle is sufficient to clean the air, as all particles are trapped in the fine filter. In the case of cigarette smoke and odours, the carbon/catalyst filter is mainly used and here the filter medium needs approx. three filter cycles per square metre of air until one can speak of clean air.

  
  

  Generally speaking, the air purifier is suitable for rooms up to 30 m² (75m³).

• Does the WDH-H3 air purifier have a timer or can I put a timer in front of it?

  Unfortunately, you cannot use an external timer for the unit. The air purifier has a so-called MEMORY function. This means that the unit picks up where it left off before restarting. However, in the event of a power failure, this is not the case for safety reasons.

  
  

  A timer would be comparable to a power failure for the unit.

  With the timer, you can preset/select a remaining running time of the unit of up to 12 hours.

• How do I know that the WDH-H3 air purifier needs a filter change?

  The air purifier has an automatic indicator for the filter change. By opening the filter flap, you can quickly see from the discolouration whether the filters need to be changed. A new filter is snow-white and must be changed at the latest when it turns brown or dark brown.

• Is the WDH-H3 air purifier also suitable for a small room, e.g. 15 sqm?

  Yes - our air purifier is also very suitable for small rooms. Due to its 3 blower levels, it can also be optimally adjusted in smaller rooms. The recommended area of use is up to approx. 30 sqm.

• How loud is the WDH-H3 air purifier?

  The noise level is as follows:

  Stage 1 ~ 38 dB

  Stage 2 ~ 42 dB

  Stage 3 ~ 49 dB

  
  

  Therefore, we recommend level 1 for a good night's sleep, as long as the unit is not placed directly next to the bed, an undisturbed night's sleep should be possible for normally sensitive persons.

• Can this WDH-H3 air purifier also be used for commercial performance use?

  Unfortunately, the WDH-H3 air purifier is not recommended for commercial use. It would certainly improve the indoor air there too, but it could never achieve "purity values" and the effectiveness that are aimed for in private households. In addition, there are the filter sets, which would certainly have to be changed frequently.

  
  

  For demanding air purification tasks, we recommend our industrial air purifier WDH-AF500B.

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Customer Reviews

• Author: Bettina G.
  Hallo Aktobis, ich muss sagen, dass ich mit ihrem WDH-H3 endlich das perfekte Gerät für mich gefunden habe, da ich sehr empfindlich bin und schon verschiedene Konkurrenzprodukte versucht habe. Es hat mir den Alltag sehr erleichtert, vielen Dank!